F - Mech Eng,Light,Heat,Weapons – 17 – D
Patent
F - Mech Eng,Light,Heat,Weapons
17
D
F17D 1/14 (2006.01) B67D 7/32 (2010.01) B67D 7/78 (2010.01) G01M 3/28 (2006.01)
Patent
CA 2315453
Piping system for chemical liquids, in particular oil products; such as fuels, at least comprising a double-walled plastic conveyor pipe (3) with an inlet and an outlet, the double-walled pipe (3) comprising, in the double wall, one or more intermediate spaces extending along the length of the pipe (3), in which the piping system furthermore comprises gas-conveying means which comprise a gas-suction device which is connected to the intermediate spaces in such a manner that, in operation, gas can be sucked through the intermediate spaces. A piping system of this nature is suitable in particular for underground use at a petrol station.
Bus Petrus Johannes
Gowling Lafleur Henderson Llp
LandOfFree
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